fix(subagents): keep a saved roster slot listed when its model is disabled

devlog/_plan/260820_bug_pr_backlog_consolidation/010_layer1_bearer_admission_2132.md

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+> **SUPERSEDED IN PART — read `000_research_inventory.md` amendments 1 and 2 first.**
+>
+> Two things in this document are wrong and were corrected after it was written:
+>
+> 1. **It is NOT a stack layer and does NOT root on #2134.** No dependency edge exists;
+>    the shipped PR (#2137) is based on `dev` as a sibling.
+> 2. **The substitution predicate is NOT "native ChatGPT pool".** Pool-only would exclude
+>    `codexAccountMode: "direct"` and re-break #1686, whose Direct admission is only safe
+>    BECAUSE substitution still runs. The shipped predicate is
+>    `route.codexAccountMode !== undefined`, covering pool AND direct. Do not "correct" it back.
+
+
+# 010 — Layer 1 (stack bottom): fix issue #2132, bearer admission must not force a ChatGPT credential
+
+Work-phase: wp2. Branch: `codex/fix-bearer-admission-2132`. Base: `codex/fix-subagent-roster-truncation` (PR #2134).
+Absorbs: nothing (no PR exists). Closes: #2132.
+
+## Why this is the stack bottom
+
+It is the highest-scoring item in the backlog (96) and it shares `src/server/responses/core.ts`
+with layer 2 (#2131). Layer 2 must be based on this, or the two edits to that file collide.
+
+## Defect
+
+Reported in #2132: after v2.23.0, a key-auth provider (Cloudflare/etc.) returns 401
+`No usable Codex main credential` when `~/.codex/auth.json` holds no ChatGPT token. Bearer
+admission sets `substituteMainCredential` unconditionally, so a route that needs no ChatGPT
+identity is still gated on one.
+
+## P-phase re-verification required (stale check)
+
+Before editing, confirm against the CURRENT tree — the lane read `dev`, not this branch:
+1. `rg -n "substituteMainCredential" src/` — enumerate every producer and consumer.
+2. Read `src/server/responses/core.ts`, `src/server/responses/compact.ts`,
+   `src/codex/auth-context.ts` and establish where the flag is set and where it is read.
+3. Reproduce the admission decision in a unit context with a key-auth provider and an
+   auth.json containing no ChatGPT token. If the current code does NOT reproduce, stop and
+   amend this doc rather than writing a fix for a defect that is not there.
+
+## Intended change
+
+Make the substitution conditional on the resolved route actually requiring a native/ChatGPT
+credential. A key-auth routed provider carries its own credential and must be admitted
+without one. Exact call sites are fixed during the stale check above; the invariant is:
+`substituteMainCredential` is set only when the route's credential source is the native
+ChatGPT pool.
+
+Out of scope: changing what happens once a native route legitimately lacks a credential,
+and any change to the pool/account selection itself.
+
+## Test plan (must fail RED first)
+
+New `tests/bearer-admission-key-auth.test.ts`:
+1. key-auth routed provider + auth.json with NO ChatGPT token -> request is admitted (no 401).
+2. native gpt route + no ChatGPT token -> still fails closed with the existing error.
+3. key-auth provider + ChatGPT token present -> unchanged behavior (no regression).
+
+Drive the file against the unpatched tree first and record the failure output; a test that
+passes before the fix does not prove anything.
+
+## Verification
+
+`bun run typecheck`; `bun test --isolate` on the new file plus the existing responses/auth
+suites; full `bun test --isolate tests` before marking review-ready; `bun run privacy:scan`.
+
+## Standalone thesis (DEV-STACK-03)
+
+"A provider that carries its own key must not be gated on a ChatGPT credential." Builds and
+passes its own tests at its own tip, independent of layer 2.
+

devlog/_plan/260820_bug_pr_backlog_consolidation/020_layer2_responses_id_backfill_2131.md

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+# 020 — Layer 2: absorb PR #2131, backfill missing Responses output ids
+
+Work-phase: wp3. Branch: `codex/absorb-responses-id-backfill`. Base: `codex/fix-bearer-admission-2132` (layer 1).
+Absorbs: **PR #2131 by @bet4it**. Closes: PR #2131 as superseded, with attribution.
+
+## Dependency edge (the only real one in this backlog)
+
+#2131 adds `src/server/responses/responses-field-backfill.ts` and calls it from
+`src/server/responses/core.ts` — the same file layer 1 edits. This is why it stacks rather
+than sitting beside layer 1.
+
+## Defect
+
+Strict decoders (grok-build) reject Responses output items that omit `id` on
+`message` / `reasoning` / `function_call`. #1941 landed earlier but some relays still omit it.
+
+## Change to carry over
+
+@bet4it's implementation, preserved in substance: synthesize stable `msg_ocx_N` / `rs_ocx_N` /
+`fc_ocx_N` ids keyed on `output_index`, never overwriting an id that is already present.
+
+## Correction to apply on top (audit finding, lane: quality)
+
+An invalid or missing `output_index` collapses to `0`, so two unindexed items can both become
+`msg_ocx_0` — duplicate ids, which is the exact class of bug this fixes. Replace the
+collapse-to-zero fallback with a monotonic per-response counter so synthesized ids are unique
+even when `output_index` is absent or malformed. Add the regression test that pins it.
+
+Docs: the locale files in #2131 are uneven (EN/FR rewritten, JA/KO/ZH/TR only first sentence).
+Carry only the EN change in this layer; locale parity is not this layer's thesis.
+
+## Test plan (must fail RED first)
+
+Carry @bet4it's tests (SSE `response.completed`, `output_item.done` via `output_index`, JSON
+passthrough, preserve-existing-id, inherited `toString` type) and ADD:
+- two items with missing `output_index` receive DISTINCT ids (fails on #2131 as written).
+
+## Verification
+
+Same gate as layer 1, plus explicit confirmation that layer 2's branch contains layer 1's
+commit (`git log --oneline <layer1>..<layer2>` shows only layer-2 commits) and that the PR
+base ref names layer 1's branch.
+

devlog/_plan/260820_bug_pr_backlog_consolidation/030_sibling_prompt_cache_retention.md

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+# 030 — Sibling A: consolidate prompt_cache_retention (issue #2092)
+
+Work-phase: wp4. Branch: `codex/consolidate-prompt-cache-retention`. Base: **dev** (sibling, not a stack layer).
+Absorbs: **PR #2102 by @lilinxiong** (base implementation). Supersedes: **#2099 by @yzxcj797**, **#2091 by @luvs01**. Closes #2092.
+
+## Why a sibling and not a layer
+
+It touches only `src/adapters/openai-responses.ts`, which no other absorbed item touches. It has
+no dependency on layers 1-2, so stacking it would impose a false merge order (DEV-STACK-01).
+
+## Chosen contract
+
+@lilinxiong's #2102: strip `prompt_cache_retention` only when
+`forward && isCanonicalOpenAiForwardProvider(provider)` AND the model is `gpt-5.6` or
+`gpt-5.6-*`. This matches the issue's own correction — the reporter withdrew the "strip
+everywhere" claim, and some non-5.6 deployments still honor the field.
+
+Rejected: #2091's blanket strip for every forward provider and every model (it inverts the
+existing gpt-5.5 preserve pin at tests/openai-responses-passthrough.test.ts:807).
+Rejected: #2099's `startsWith("gpt-5.6")`, which also matches `gpt-5.60`, and its stray
+package.json 2.24.2 -> 2.25.0 bump.
+
+## Carried from the superseded PRs
+
+From @yzxcj797's #2099: the `Fixes #2092` issue link and the repro-shaped fixture
+(`store:false`, streamed input array). From @luvs01's #2091: nothing — its key-auth preserve
+case is already covered by #2102.
+
+## Tightening to apply
+
+Replace the string-prefix family match with the catalog/native-slug predicate if one exists
+in the current tree (`rg -n "isGpt56NativeSlug|NATIVE_OPENAI_MODELS" src/`); otherwise keep
+the exact `gpt-5.6` / `gpt-5.6-*` match and pin `gpt-5.60` as a NON-match in tests.
+
+## Test plan (must fail RED first)
+
+Carry #2102's tests; add `gpt-5.60` non-match; keep the gpt-5.5 preserve pin intact.
+

devlog/_plan/260820_bug_pr_backlog_consolidation/040_sibling_routing_capability.md

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+# 040 — Sibling B: routing capability + lab behavior evidence
+
+Work-phase: wp5. Branch: `codex/absorb-capability-evidence`. Base: **dev**.
+Absorbs: **PR #2100 and PR #2077, both by @ntdatt812**. Closes both as superseded.
+
+## Why these two together, and why a sibling
+
+#2100 touches `src/routing/capability.ts`; #2077 touches
+`src/routing/compatibility/behavior.ts`. Disjoint files, one author, one thesis: *model-keyed
+lookups must use the same resolution rules the runtime uses*. Neither depends on layers 1-2.
+
+Note: #2077 is Lab-adjacent. Verify `tests/core-lab-boundary.test.ts` stays green — the file
+already imports Lab types, so this must not newly puncture the boundary.
+
+## Defects
+
+#2100: bare map lookups made `gpt-oss:120b` inherit the provider-wide 8k window instead of the
+`gpt-oss` family's 131072, and `noVisionModels` was ignored.
+#2077: `map[modelId]` missed family/case overrides, and `constructor` resolved to
+`Object.prototype.constructor`, making `jcsStringify` throw and silently dropping Lab subjects.
+
+## Change
+
+Route both through `modelRecordValue` / `isModelTextOnly` as @ntdatt812 wrote them. Prototype-id
+safety (`constructor`, `toString`) is the load-bearing part; keep those tests verbatim.
+
+## Test plan
+
+Carry both test files. Confirm the exact-own maps (`modelPreferHostedTools`,
+`modelOpenRouterRouting`) still do NOT family-spread.
+

devlog/_plan/260820_bug_pr_backlog_consolidation/050_sibling_k12_short_window.md

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+# 050 — Sibling C: K12 short-window quota (issue #2047)
+
+Work-phase: wp6. Branch: `codex/absorb-k12-short-window`. Base: **dev**.
+Absorbs: **PR #2056 by @Ingwannu**. Supersedes: **#2062 by @yzxcj797**. Closes #2047.
+
+## Chosen base
+
+#2056 is a strict superset of #2062: `snapshotHasShort`, partial-snapshot preservation,
+`updateAccountQuota` carry, and the parse -> cache -> DTO path #2047 actually requires. #2062
+drops short on a later weekly/monthly partial snapshot and carries a stray version bump.
+
+## Blocker to fix before this can land (raised by the maintainer on both PRs)
+
+A short-only snapshot with `shortPercent: 0` scores `0` instead of `CODEX_UNKNOWN_USAGE_SCORE`,
+so `pickLowestUsageAmong` prefers an account whose long windows are unverified. Fix:
+include `shortPercent` in `computeCodexUsageScore` only when the plan's governing long window
+is finite; otherwise return `CODEX_UNKNOWN_USAGE_SCORE`. Add the short-only regression.
+
+This blocker is why #2056 is absorbed-and-corrected rather than simply approved.
+
+## Also close
+
+**#2063 by @yzxcj797** — superseded by ALREADY-MERGED #2055 (`2648ffa87`), which classifies
+`detail.code` with a stricter own-property lookup. Close with attribution; fold nothing.
+

devlog/_plan/260820_bug_pr_backlog_consolidation/060_supersede_and_close_operations.md

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+# 060 — Close-out: supersede operations and attribution
+
+Work-phase: wp7. No code. GitHub state only.
+
+## Ordering rule
+
+A PR is closed ONLY after its replacement exists and is pushed. Never close first.
+
+## Operations
+
+| Close | Author | Replaced by | Carried over |
+|---|---|---|---|
+| #2131 | @bet4it | layer 2 (020) | full implementation + tests, plus unique-id correction |
+| #2099 | @yzxcj797 | sibling A (030) | issue link, repro fixture |
+| #2091 | @luvs01 | sibling A (030) | nothing; contract deliberately narrower |
+| #2100 | @ntdatt812 | sibling B (040) | full implementation + tests |
+| #2077 | @ntdatt812 | sibling B (040) | full implementation + tests |
+| #2102 | @lilinxiong | sibling A (030) | full implementation + tests (base) |
+| #2062 | @yzxcj797 | sibling C (050) | nothing; #2056 supersedes |
+| #2063 | @yzxcj797 | merged #2055 | nothing |
+| #2056 | @Ingwannu | sibling C (050) | full implementation + scorer correction |
+| #2029 | @yzxcj797 | maintainer PR #2130 | nothing; #2130 is a superset |
+
+## Comment template
+
+> Thanks for this, @<login> — closing as superseded by #<n>, which carries <what> from your
+> patch. <What changed and why.> Your work is credited in that PR's description.
+
+## NOT closed, with reasons stated publicly
+
+- **#2109 / #2110** (@drakonkat): unresolved security gap in the override gate; needs a human
+  security pass (AGENTS.md security boundary).
+- **#2053** (@Ingwannu): C4 OAuth surface; MAINTAINERS.md mandates security review.
+- **#2101, #2040**: large (20 and 14 files); each needs its own PABCD cycle.
+- **#2115, #2082, #2027, #2067, #2054, #2032**: below the 60 threshold.
+- **#2104, #2075, #2127**: #2075/#2054 CONFLICTING; #2127 is an active draft by its author.
+